Firstly, most of the people in India having cars with OBD port cannot do this since it needs a TV screen. With that, read up the link.
Looks cool, here is a video of the same :
http://www.cowfishstudios.com/blog/...stics-obd-ii-data-on-an-aftermarket-head-unit
Looks cool, here is a video of the same :
http://www.cowfishstudios.com/blog/...stics-obd-ii-data-on-an-aftermarket-head-unit